Rodrigo Márquez
← All case studies

Android · Offline-first

TMS: proof of delivery that works without a connection

An Android transport management app with driver tracking, photo evidence, customer signature and offline mode.

Key result
~10
active users
Status
Paused, waiting for requirements for the web portal.

Case studies are anonymised: client names and data are omitted, and any screenshots use synthetic data.

Context and problem

The transport operation needed to know where drivers were and to prove each delivery.

Drivers often work without a reliable connection, so the app had to keep working offline.

My role

PENDIENTEtu rol

Decisions and discarded alternatives

Offline mode

What I chose
The app works offline. PENDIENTEestrategia de almacenamiento local y de sincronización
Alternatives I discarded
PENDIENTEalternativas
Why
PENDIENTEpor qué

Delivery evidence

What I chose
Photo evidence and customer signature captured in the app.
Alternatives I discarded
PENDIENTEalternativas
Why
PENDIENTEpor qué

Architecture

How the driver app, the backend and tracking fit together.

Results

  • Active users ~10
  • Status Paused until the requirements for the web portal are defined

Technologies

Mobile

  • Android (native)
  • Driver GPS
  • Photo evidence
  • Customer signature
  • Offline mode

Other

  • PENDIENTElenguaje, backend y sincronización

What I would do differently

PENDIENTEqué harías distinto

Demo

The delivery flow, with synthetic data.